Prevent VoiceOver from announcing omnibox and status bubble overlay windows.

Prevent VoiceOver from announcing omnibox overlay windows.

While typing into the omnibox, VoiceOver will announce
"untitled window created"
This is fairly disruptive and has been commented on by users.
We should revisit how to make the underlying NSMatrix accessible, but in the meantime, set the window to NSAccessibilityUnknownRole so VoiceOver will ignore it.

Similarly, status bubbles cause VoiceOver to announce "untitled window created". The content contained therein is exposed in other ways to the user of VoiceOver.

BUG=63483
TEST=manual


Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=102207

[David Tseng, 2011-09-21 19:00:07]

Primary reviewer: pinkerton
FYI: dmazzoni

[pink (ping after 24hrs), 2011-09-21 19:01:45]

lgtm

[David Tseng, 2011-09-21 20:05:31]

Missed status bubbles in the first go around. Same override applied to those
windows. Thanks!

[pink (ping after 24hrs), 2011-09-21 20:07:44]

SLGTM

On Wed, Sep 21, 2011 at 4:05 PM,  <dtseng@chromium.org> wrote:
> Missed status bubbles in the first go around. Same override applied to those
> windows. Thanks!
>
> http://codereview.chromium.org/7982033/
>



-- 
Mike Pinkerton
Mac Weenie
pinkerton@google.com

[commit-bot: I haz the power, 2011-09-22 00:16:15]

Change committed as 102207